We have no explanation as to how or why this unmanned tractor ended up doing laps and destroying cars in a Walmart parking, but that certainly doesn't make watching it happen any less amusing.

From the comments and the description, it appears this tractor destruction derby occurred in Richmond Hill, Ontario where, fortunately for the rest of us, a video camera equipped Walmart customer captured it on video. We might not know how it started, but this video details the random tractor destruction all the way to the hilarious end.